by John H. Mueller | Karl F. Schuessler.
by George W. Snedecor | William G. Cochran.
by O. S. Bindra | Harcharan Singh.
by Dorris Flynn | .
by B. N. Chatterjee | .
by W. A. J. Chapman | .
by P.C. Agarwal | .
by S.S. Acharya | .
by G.C.Banerjee | .
by G.C. Banerjee | .
by S. S. Acharya | .
by U.S. Sree Ramulu | U .S. Sru.
by K. G. Shanmugavelu | .
by V.S.Satyapriya | .
by H. S. Mavi | .
by Katharine Paddock Hess | .
by Anoop Singh Sandhu | .
by R . L . Agrawal | .
by R. S. Singh | .
by Firman E. Bear | .
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